オカザキ　ケン   Okazaki Ken   岡崎　賢    所属   医学部 医学科（東京女子医科大学病院）    職種   教授・基幹分野長
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Varus-Tilted Distal Tibial Plafond Is a Risk Factor for Recurrent Ankle Instability After Arthroscopic Lateral Ankle Ligament Repair.
掲載誌名	正式名：Foot & ankle international 略　 称：Foot Ankle Int ISSNコード：19447876/10711007
掲載区分	国外
巻・号・頁	43(6),pp.796-799
著者・共著者	Yoshimoto Kensei, Noguchi Masahiko, Maruki Hideyuki, Tominaga Ayako, Ishibashi Mina, Okazaki Ken
発行年月	2022/06
概要	BACKGROUND:Although varus-tilted distal tibial deformity is an established risk factor for chronic lateral ankle instability (CLAI), no studies have reported whether this deformity influences ankle instability after arthroscopic lateral ankle ligament repair (ALLR) for CLAI.METHODS:A total of 57 ankles from 57 patients who underwent ALLR for CLAI were retrospectively analyzed. Tibial articular surface (TAS) angles were measured on preoperative plain radiograph. After 12 months of follow-up, recurrent ankle instability and talar tilt angles on stress radiograph were evaluated as outcomes. Relationships between the TAS angle and these outcomes were assessed.RESULTS:Recurrent ankle instability was observed in 10 ankles. The TAS angles of patients with recurrent instability were significantly lower (85.2 degrees vs 87.9 degrees). The receiver operating characteristic curve analysis revealed that the cutoff value of TAS angle for recurrent instability was 86.2 degrees. Based on this cutoff value, our patients were divided into 2 groups: low-TAS and high-TAS group. Univariate and multivariate analysis revealed that low TAS was an independent risk factor for recurrent ankle instability and greater postoperative talar tilt angles.CONCLUSION:Varus-tilted distal tibial plafond appears to be a risk factor for recurrent ankle instability after ALLR.
DOI	10.1177/10711007221077099
PMID	35373598